40674155646 has 16 divisors (see below), whose sum is σ = 85629801600. Its totient is φ = 12844470168.

The previous prime is 40674155633. The next prime is 40674155693. The reversal of 40674155646 is 64655147604.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40674155595 and 40674155604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178395306 + ... + 178395533.

It is an arithmetic number, because the mean of its divisors is an integer number (5351862600).

Almost surely, 2^40674155646 is an apocalyptic number.

40674155646 is an abundant number, since it is smaller than the sum of its proper divisors (44955645954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40674155646 is a wasteful number, since it uses less digits than its factorization.

40674155646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356790863.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 40674155646 in words is "forty billion, six hundred seventy-four million, one hundred fifty-five thousand, six hundred forty-six".